puppeteer/website/versioned_docs/version-19.3.0/api/puppeteer.page.emulatenetworkconditions.md
release-please[bot] c4803e4a37
chore: release main (#9313)
🤖 I have created a release *beep* *boop*
---


<details><summary>ng-schematics: 0.1.0</summary>

## 0.1.0 (2022-11-23)


### Features

* **ng-schematics:** Release @puppeteer/ng-schematics
([#9244](https://github.com/puppeteer/puppeteer/issues/9244))
([be33929](be33929770))
</details>

<details><summary>puppeteer: 19.3.0</summary>

##
[19.3.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.2.2...puppeteer-v19.3.0)
(2022-11-23)


### Miscellaneous Chores

* **puppeteer:** Synchronize puppeteer versions


### Dependencies

* The following workspace dependencies were updated
  * dependencies
    * puppeteer-core bumped from 19.2.2 to 19.3.0
</details>

<details><summary>puppeteer-core: 19.3.0</summary>

##
[19.3.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-core-v19.2.2...puppeteer-core-v19.3.0)
(2022-11-23)


### Features

* **puppeteer-core:** Infer element type from complex selector
([#9253](https://github.com/puppeteer/puppeteer/issues/9253))
([bef1061](bef1061c06))
* **puppeteer-core:** update Chrome launcher flags
([#9239](https://github.com/puppeteer/puppeteer/issues/9239))
([ae87bfc](ae87bfc2b4))


### Bug Fixes

* remove boundary conditions for visibility
([#9249](https://github.com/puppeteer/puppeteer/issues/9249))
([e003513](e003513c0c))
</details>

---
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2022-11-23 14:14:25 +01:00

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---
sidebar_label: Page.emulateNetworkConditions
---
# Page.emulateNetworkConditions() method
This does not affect WebSockets and WebRTC PeerConnections (see https://crbug.com/563644). To set the page offline, you can use [Page.setOfflineMode()](./puppeteer.page.setofflinemode.md).
A list of predefined network conditions can be used by importing [PredefinedNetworkConditions](./puppeteer.predefinednetworkconditions.md).
#### Signature:
```typescript
class Page {
emulateNetworkConditions(
networkConditions: NetworkConditions | null
): Promise<void>;
}
```
## Parameters
| Parameter | Type | Description |
| ----------------- | ------------------------------------------------------------- | --------------------------------------------------------------- |
| networkConditions | [NetworkConditions](./puppeteer.networkconditions.md) \| null | Passing <code>null</code> disables network condition emulation. |
**Returns:**
Promise&lt;void&gt;
## Example
```ts
import {PredefinedNetworkConditions} from 'puppeteer';
const slow3G = PredefinedNetworkConditions['Slow 3G'];
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.emulateNetworkConditions(slow3G);
await page.goto('https://www.google.com');
// other actions...
await browser.close();
})();
```